Golf-ball.



. Patented Nov. 4, |9021. A. n. sPEAR.

GULF BALL.

(Applicationfled Aug. 7, 1902.)

(No Model.)-

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ANSON R. SPEAR, OF ST. PAUL, 'MINNESOTA.

capte-BALL.

IJCIFICATION forming' part 0f Letters Patent No. 712,610, dated November 4, 1902.

Application filed August '7, 1902s Serial No, 118,717. (No model.)

in the county of Ramsey and State of Minne` sot-a, have invented certain new and useful Improvements in Golf-Balls, of which the following is a specification.

My invention relates to improvements in golf-balls, its object being to provide a ball which will have in the maximum degree the quality of resiliency under a heavy blow, but which will be comparatively non-resilient under a light blow.

Among the other objects of my construction is the cushioning of the outer covering to prevent breaking, the preventing of slipping of the windings constituting the body of the ball, and the securing of a hard butY p width and less thickness than the inner windspringy inner core.

To this end my invention consists of the construction and combination hereinafter particularly described and claimed.

In the accompanying drawings, forming.

part of this specification, Figurel is a view of my improved ball, partly broken away to better show the construction. Fig. 2 is a vertical section taken through the center of the ball, and Fig. 3 is a section of part of the inner-core winding.

As shown in the drawings, the central core consists of windings in miscellaneous directions ot' one or more strips of rubber 2, said rubber being wound under high tension and forming a solid spherical body of over half the size of the nished ball. The strips 2 are formed with a roughened surface 3 upon either or both sides to constitute a gripping` surface and prevent slipping of the windings.` The strips 2 are approximately a half-inch in width. Around the inner core formed by the windings 2 is wound a rubber strip or strips Ll. The strips/l are considerably wider and thinner than the strips 2, being practically twice the width andone-half the thickness of said strips 2. The windings 4` are under considerably less tension than the windings 2 and may or may not, as desired, be formed with rough surfaces, as are the strips 2. One purpose of the windings 4 is to form a cush- -ion or softer surface around the inner core to 4 wider and thinner than the strips 2 this is x Veasilyattained, as wide and thin strips make a softer ball than thick narrow strips, even though the tension be the same.

The windings 2 and l are inclosed within a spherical shell 5, of gutt-a-percha or other suitable material. As shown in the drawings, the outer windings 4: form a very much smalleil portion of the ball than the innercore windings 2.

By having the inner windings 2 formed with roughened surfaces the strips need not be wound in rubber cement or other means used to hold the strips in position. The roughened surfaces of the windings constitute gripping-surfaces and prevent slipping and allow the inner core to be made particularly hard and firm.

. By having the outer windings 4: of greater ings 2 and having them wound under less tension the outer windings will be much softer than the inner core. The result is that the outer windings will serve as a resilient cushion for thedouter shell, taking up light blows and making the ball nonu'esponsive to such blows. At the same time the outer windings being elastic will not deaden the ball under heavy blows, as would be the caseif fabric or non-elastic material were used. The Windings 4 being under less tension and wider than the windings 2 will by forming a resilient -cushion for the outer shell also tend to prevent cracking and breaking of said shell. In case of breaking of the inclosing shell the shell and outer windings can be removed and new outerwindings and shell can be substi tuted, the inner core being protected from injury by the outer windings. It is also important that the inner and outer windings shall each be as nearly as possible of uniform shell of relatively hard plastic material.

2. In a playing-ball, the combination of an IOO inner core made up of rubber strips Wound under high tension in miscellaneous directions, similar strips of greater with and less thickness Wound in miscellaneous directions around said inner core, and an outer shellor cover of relatively hard plastic material.

3. In a playing-ball, the combination of an inner core consisting` of rubber strips Wound in miscellaneous directions under high tension, rubber strips of less thickness and greater Width Wound under less tension around said inner-core strips, and an inclosing shell of Wear-resisting material.

4. A ball of the class described, com prisingr in combination an inner core consisting of rubber strips wound under high tension, the outer surface of said strips being roughened, rubber strips of greater Width Wound in mis- ANSON R. SPEAR.

Witnesses:

H. S. JOHNSON, EMILY EAsTMAN Oris. 

